Do socks have a left and a right?

I know this may sound really crazy to some of you but then maybe not. Here I am again using my husbands pickiness on his clothes to start a discussion.
He believes that socks are made to go on a certain foot. He says that there is a sock for the right foot and one for the left foot. They are made to match up that way just like shoes are. I have laughed at him for hours over this. Here it is to tell me what you think. Does Socks have a left and right in a pair just like shoes fit?